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Gravity oscillating system
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Patent number 10,982,660
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Issue date Apr 20, 2021
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Shakeel Ahmed Pervez
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Drive assembly
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Patent number 10,473,090
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Issue date Nov 12, 2019
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Alexander Fothergill
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Manufacturing method of hub for flywheel
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Patent number 10,056,803
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Issue date Aug 21, 2018
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Industry-University Cooperation Foundation Hanyang University
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Sung Kyu Ha
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2721627
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Patent number 2,721,627
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Issue date Oct 25, 1955
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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2429040
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Patent number 2,429,040
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Issue date Oct 14, 1947
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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2340155
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Patent number 2,340,155
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Issue date Jan 25, 1944
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...